EP 3547404 A4 20200311 - POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING SAME
Title (en)
POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING SAME
Title (de)
POSITIVELEKTRODE FÜR EINE LITHIUMSEKUNDÄRBATTERIE UND LITHIUMSEKUNDÄRBATTERIE DAMIT
Title (fr)
ÉLECTRODE POSITIVE POUR BATTERIE RECHARGEABLE AU LITHIUM ET BATTERIE RECHARGEABLE AU LITHIUM LA COMPRENANT
Publication
Application
Priority
- KR 20170079977 A 20170623
- KR 2018007184 W 20180625
Abstract (en)
[origin: US2019229330A1] Disclosed is a positive electrode for a lithium secondary battery, which includes: a positive electrode current collector; and a positive electrode active material layer including an upper layer portion and a lower layer portion, wherein each of the upper layer portion and the lower layer portion of the positive electrode active material layer includes a positive electrode active material, binder polymer and a conductive material, and the positive electrode active material has an electroconductivity of 0.0001-0.0004 S/cm, and the content of the conductive material contained in the lower layer portion is 10-59 parts by weight based on 100 parts by weight of the content of the conductive material contained in the upper layer portion, or the positive electrode active material has an electroconductivity of 0.008-0.015 S/cm, and the content of the conductive material contained in the lower layer portion is 10-30 parts by weight based on 100 parts by weight of the content of the conductive material contained in the upper layer portion.
IPC 8 full level
H01M 4/13 (2010.01); H01M 4/131 (2010.01); H01M 4/36 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/62 (2006.01); H01M 10/052 (2010.01); H01M 4/02 (2006.01); H01M 10/0525 (2010.01)
CPC (source: EP KR US)
H01M 4/13 (2013.01 - EP KR US); H01M 4/131 (2013.01 - EP US); H01M 4/366 (2013.01 - EP US); H01M 4/505 (2013.01 - EP US); H01M 4/525 (2013.01 - EP US); H01M 4/622 (2013.01 - KR US); H01M 4/624 (2013.01 - KR); H01M 4/625 (2013.01 - EP US); H01M 10/052 (2013.01 - KR US); H01M 10/0525 (2013.01 - US); H01M 10/0525 (2013.01 - EP); H01M 2004/028 (2013.01 - EP US); Y02E 60/10 (2013.01 - EP KR)
Citation (search report)
- [XI] EP 3147971 A1 20170329 - CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
- [X] WO 2016038440 A1 20160317 - TOYOTA MOTOR CO LTD [JP]
- See also references of WO 2018236200A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
US 11316150 B2 20220426; US 2019229330 A1 20190725; CN 110199413 A 20190903; CN 110199413 B 20220524; EP 3547404 A1 20191002; EP 3547404 A4 20200311; JP 2020501328 A 20200116; JP 2022125251 A 20220826; JP 7350944 B2 20230926; KR 102644282 B1 20240306; KR 20190000849 A 20190103; WO 2018236200 A1 20181227
DOCDB simple family (application)
US 201816337165 A 20180625; CN 201880007003 A 20180625; EP 18819607 A 20180625; JP 2019531162 A 20180625; JP 2022109015 A 20220706; KR 2018007184 W 20180625; KR 20180073021 A 20180625